<?php


namespace Lc\CaracoleBundle\Statistic;

use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class Statistic
{
    protected $properties = array();
    protected $averageProperties = array();
    protected $labels;
    protected $dateStart;
    protected $dateEnd;
    protected $interval;
    protected $em;
    protected $resultsSort;

    public function __construct(
            EntityManagerInterface $entityManager,
            ?\DateTime $dateStart = null,
            ?\DateTime $dateEnd = null,
            ?string $interval = null
    ) {
        $this->em = $entityManager;
        $this->dateStart = $dateStart;
        $this->dateEnd = $dateEnd;
        $this->interval = $interval;
    }

    public function addProperty(string $propertyName, array $options)
    {
        $resolver = new OptionsResolver();
        $this->configurePropertyOptions($resolver);
        $this->properties[$propertyName] = $resolver->resolve($options);
        $this->resultsSort[$propertyName] = $propertyName;
    }

    public function addAverageProperty(string $propertyName, array $options)
    {
        $resolver = new OptionsResolver();
        $this->configurePropertyOptions($resolver);
        $this->averageProperties[$propertyName] = $resolver->resolve($options);
        $this->resultsSort[$propertyName] = $propertyName;
    }


    public function setAverageData(string $propertyName, string $key, $value)
    {
        if (isset($this->averageProperties[$propertyName])) {
            $this->averageProperties[$propertyName]['data'][$key] += number_format($value, 2);
        } else {
            throw new \Exception('La proprieté "' . $propertyName . '" n\'existe pas ');
        }
    }

    public function setData(string $propertyName, string $key, $value)
    {
        if (isset($this->properties[$propertyName])) {
            if(isset($this->properties[$propertyName]['data'][$key])) {
                $this->properties[$propertyName]['data'][$key] += $value;
            }
            $this->properties[$propertyName]['total_period'] += $value;
        } else {
            throw new \Exception('La proprieté "' . $propertyName . '" n\'existe pas ');
        }
    }

    public function setAveragePropertiesData()
    {
        foreach ($this->getLabels() as $key => $label) {
            foreach ($this->getAverageProperties() as $averagePropertyName => $averageProperty) {
                if ($this->getData($averageProperty['divider'], $key)) {
                    $this->setAverageData(
                            $averagePropertyName,
                            $key,
                            $this->getData($averageProperty['dividend'], $key) / $this->getData(
                                    $averageProperty['divider'],
                                    $key
                            )
                    );
                }

                if ($this->getTotalPeriod($averageProperty['divider'])) {
                    $this->averageProperties[$averagePropertyName]['total_period'] = $this->getTotalPeriod(
                                    $averageProperty['dividend']
                            ) / $this->getTotalPeriod($averageProperty['divider']);
                }
            }
        }
        foreach ($this->getProperties() as $propertyName => $property) {
            $this->properties[$propertyName]['average_period'] = number_format(
                    $this->properties[$propertyName]['total_period'] / count($this->getLabels()),
                    2
            );
        }
        foreach ($this->getAverageProperties() as $averagePropertyName => $averageProperty) {
            $this->averageProperties[$averagePropertyName]['average_period'] = number_format(
                    $this->averageProperties[$averagePropertyName]['total_period'] / count($this->getLabels()),
                    2
            );
        }
    }


    public function getLabels()
    {
        return $this->labels;
    }

    public function getProperties()
    {
        return $this->properties;
    }

    public function getData($propertyName, $key)
    {
        if (!isset($this->properties[$propertyName])) {
            throw new \Exception('La proprieté "' . $propertyName . '" n\'existe pas ');
        }
        return $this->properties[$propertyName]['data'][$key];
    }

    public function getTotalPeriod($propertyName)
    {
        if (!isset($this->properties[$propertyName])) {
            throw new \Exception('La proprieté "' . $propertyName . '" n\'existe pas ');
        }
        return $this->properties[$propertyName]['total_period'];
    }

    public function getAverageProperties()
    {
        return $this->averageProperties;
    }


    public function getResults()
    {
        $results = array_replace($this->resultsSort, $this->properties, $this->averageProperties);
        return $results;
    }

    public function getAsArray()
    {
        return array(
                'label' => $this->getLabels(),
                'data' => $this->getResults(),
        );
    }

    public function getDateRange()
    {
        return new \DatePeriod(
                $this->getDateStart(),
                new \DateInterval('P1' . $this->getInterval()),
                $this->getDateEnd()
        );
    }

    public function getDateStart()
    {
        return $this->dateStart;
    }

    public function getDateEnd()
    {
        return $this->dateEnd;
    }

    public function getInterval()
    {
        return $this->interval;
    }

    public function configurePropertyOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(
                [
                        'unit' => '',
                        'label' => 'Chiffre affaire produit',
                        'label_short' => 'CA produit',
                        'data' => array(),
                        'total_period' => 0,
                        'average_period' => 0,
                        'dividend' => null,
                        'divider' => null,
                ]
        );
    }
}